Engine Tuning – Overview

Current overview of all available tools for engine tuning.Clicking a button or picture displays additional info about the product.

CAUTION (applies to the USA)

All calibrations included in the Diag4Tune software are for Race Use Only and not to be used on public roads. Installation of these calibrations will cause your motorcycle to be non-compliant under U.S. EPA, California, and other emissions laws, rules and regulations.

Available tuning methods

(quick link)

The tuning system focuses on Harley-Davidson engines equipped with DELPHI EFI (diagnostic communication J1850 or CAN)